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涎腺腺样囊性癌筛孔状结构形成的机制是()

发布日期:2022-07-20

涎腺腺样囊性癌筛孔状结构形成的机制是()
A

肿瘤细胞坏死脱落

B

肿瘤细胞退行性变

C

肿瘤细胞凋亡形成

D

腺上皮细胞分泌产生

E

肌上皮细胞分泌产生

试题解析

唾液腺

唾液腺,人或脊椎动物口腔内分泌唾液的腺体。口腔有大、小两种唾液腺。小唾液腺散在于各部口腔粘膜内(如唇腺、颊腺、腭腺、舌腺)。大唾液腺包括腮腺、下颌下腺和舌下腺三对,它们是位于口腔周围独立的器官,但其导管开口于口腔粘膜。

中文名
唾液腺
释义
人或脊椎动物
外文名
parotidgland
也叫
唾腺

机制

机制,是指各要素之间的结构关系和运行方式。指有机体的构造、功能及其相互关系;机器的构造和工作原理。语出清 丘逢甲 《汕头海关歌寄伯瑶》:“西人嗜糖嗜其白,贱买赤砂改机制。”在社会学中的内涵可以表述为“在正视事物各个部分的存在的前提下,协调各个部分之间关系以更好地发挥作用的具体运行方式。”

中文名
机制
拼音
jī zhì
出处
《汕头海关歌寄伯瑶》
外文名
mechanism
释义
有机体的构造、功能及其相互关系
分类
行政计划式、指导服务式、监督服务式

筛孔

筛孔是指筛面上的孔眼。一般有圆孔、长形孔、方形孔、三角形孔、鱼鳞孔和其他孔形。筛孔数是用以表示筛孔大小的一种数值。有筛孔数/厘米2,筛孔数/英寸和筛孔数/厘米等几种表示方法。筛孔数愈大,则筛号愈大,筛孔净宽(即边长)和筛孔愈小,经筛分而得的颗粒愈小。

中文名
筛孔
概念
筛面上的孔眼
表示
单位长度或面积上的筛孔数
外文名
sieve aperture
形状
圆孔、长形孔、方形孔等
作用
优化生产能力、提高筛分效率

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此试题出现在

口腔科住院医师

口腔病理学

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